https://www.thinkwiki.org/w/api.php?action=feedcontributions&feedformat=atom&user=OumU7h 2026-06-07T03:46:21Z User contributions MediaWiki 1.31.12 https://www.thinkwiki.org/w/index.php?title=Automatically_reduce_brightness&diff=29184 2007-04-10T19:15:32Z

<p>OumU7h: </p> <hr /> <div>== The idea ==<br /> When watching someone working with an iBook I noticed that the brightness automatically faded to the lowest level after a few seconds of inactivity. I think that this is a simple way to save power. I wrote a c-daemon which uses the XScreenSaver extension to check whether the user is active. If he is not, it lowers the brightness to a specific level. When he is active again, the brightness is reset to the previous level.<br /> <br /> == Prerequisites ==<br /> A recent kernel with IBM ACPI extensions. (You should have a file called {{path|/proc/acpi/ibm/brightness}})<br /> <br /> == Installation ==<br /> # Download the [http://pberndt.com/Programme/Linux/brightd/_download/brightd.tar.bz2 brightness control daemon]<br /> # Unpack it and chdir into the {{path|brightd}} directory<br /> # Call {{cmduser|make}}<br /> # Move the {{path|brightd}} executable into a directory like {{path|/usr/local/bin}}<br /> # Put {{cmduser|brightd -d}} into your {{path|~/.Xsession}} (or another distro-specific startup script)<br /> # Change the permissions of {{path|/proc/acpi/ibm/brightness}} so that your user can write to that file<br /> <br /> See the README for more detailled instructions and command line parameters.<br /> <br /> == Example installation for Gentoo linux and XFCE4 ==<br /> $ wget -o /dev/null -O brightd.tar.bz2 &quot;http://pberndt.com/Programme/Linux/brightd/_download/brightd.tar.bz2?ct=raw</div>

OumU7h